Title :
Analysis of Generating Cylindrical Vector Beams Using a Few-Mode Fiber Bragg Grating
Author :
Lin, Zhongxi ; Wang, Anting ; Xu, Lixin ; Sun, Biao ; Gu, Chun ; Ming, Hai
Author_Institution :
Dept. of Opt. & Opt. Eng., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
An efficient numerical model is proposed to generate cylindrical vector (CV) beams by use of a few-mode fiber Bragg grating (FM-FBG) written directly in an ytterbium-doped fiber (YDF). Based on multilayer method, we analysis the transverse modes competition between LP01 and LP11 modes under various conditions. We propose that a pure CV beam can be generated by completely depressing LP01 mode through a doughnut doping few-mode fiber or using a wavelength filter.
Keywords :
Bragg gratings; fibre lasers; laser beams; ytterbium; cylindrical vector beam generation; doughnut doping few mode fiber; few mode fiber Bragg grating; wavelength filter; Bragg gratings; Doping; Gratings; Laser beams; Optical fiber polarization; Optimized production technology; Power generation; Cylindrical vector beams; few-mode fiber Bragg grating; wavelength filter;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2221679
